User's Manual

EMS Wireless Operator’s Manual

EkoLink II

1.5 Single Hub Installation

To Install the Hub, locate it as close as possible to the Service Provider’s BTS.

Any distance between the BTS and Hub will result in unnecessary cable losses. It

is also very important to ensure that the composite RF Downlink power does not

exceed +20 dBm. Table 1 shows the maximum allowable power setting for each

carrier to arrive at a composite power of +20 dBm.

Number of Carriers Power Per Carrier

1 +20 dBm

2 +17 dBm

3 +15.2 dBm

4 +14 dBm

n +20 - [10log(n)] dBm/ch

Table 1. Power per carrier table

Note that each additional provider requires a reduction in carrier power to maintain

the maximum rated input power of +20 dBm.

• Using a Philips screwdriver and the provided screws, secure the Hub in a

standard 19” equipment rack near the BTS.

• Connect the Downlink RF Output from the BTS to the RF Input on the Hub.

• Connect the RF Output from the Hub to the BTS Uplink port.

• Connect the power to the Hub.

• If the modem option was purchased and a dedicated phone line is available,

connect the RJ-45 phone jack.

• Log onto the Hub as user and follow the system initialization procedures.

1.6 Multiple Hub Installation

For installations requiring more than one Hub, there will be one Hub designated as

the Master and the other Hubs will be slaved to the Master. Up to three additional

Hubs can be slaved to a single Master Hub. The BTS will only interface to the

Master Hub. An optional Master Alarm Controller may be purchased to allow

alarms to be reported to an offsite monitoring station. If purchased, the Master

Alarm Controller will be factory installed.

• Identify the Master Hub and using a Philips screwdriver and the provided

screws, secure the Master Hub in a standard 19” equipment rack near the

BTS